Chemistry, 23.07.2019 11:00 neariah24

An element x forms a compound xh 3 with hydrogen. another element y forms a compound yx 2 with x. given that the valency of hydrogen is 1, what are the valencies of x & y?

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An element x forms a compound xh 3 with hydrogen. another element y forms a compound yx 2 with x. gi...